Does anyone know any tool to export leads from sales navigator?

Last year, I got my landing page done by a UK service provider, and I saw an opportunity for this. Since then, I have been researching this and building my Ecom Automation agency. My ecom agency is stable, and I plan to diversify into the Website industry, starting from Landing pages. I am open to any ideas; ideally, if anyone is already doing it, I can hop on a call.